Trump says the U.S. now has permanent authority over Greenland's security, a win for American and Canadian Arctic defense but still unconfirmed by Denmark and Greenland.

• Trump announced a deal with Denmark and Greenland giving the U.S. open-ended control over all security matters on the island.
• The stated goal is to block China and Russia from setting up bases in the Arctic without U.S. approval.
• Trump called it an "infinite life deal" and promised immediate military buildup while working with local residents.
• Danish and Greenlandic officials have not yet confirmed the details, though earlier talks aimed to expand U.S. access as Arctic tensions rise.

Outlook: Watch for Denmark and Greenland to confirm or push back on the terms, and for Russia and China to respond to a stronger U.S. military footprint in the Arctic.